Finding the Fourth Proportional to 102,755.99, 154,149.37 and 31,672.72

Step by Step Solution

1. Step 1: Write the proportion equation
   102,755.99 : 154,149.37 = 31,672.72 : x
2. Step 2: Convert to fraction form
   102,755.99/154,149.37 = 31,672.72/x
3. Step 3: Cross multiply
   102,755.99x = 154,149.37 × 31,672.72
4. Step 4: Simplify right side
   102,755.99x = 4,882,329,903.15
5. Step 5: Solve for x
   x = 4,882,329,903.15/102,755.99
6. Step 6: Final answer
   x = 47,513.82